Add solution 253.

Signed-off-by: Thomas Köhler <jean-luc@picard.franken.de>

1 files changed, 49 insertions, 0 deletions

diff --git a/challenge-253/jeanluc2020/python/ch-1.py b/challenge-253/jeanluc2020/python/ch-1.py
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+++ b/challenge-253/jeanluc2020/python/ch-1.py
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+#!/usr/bin/python3
+# https://theweeklychallenge.org/blog/perl-weekly-challenge-253/#TASK1
+#
+# Task 1: Split Strings
+# =====================
+#
+# You are given an array of strings and a character separator.
+#
+# Write a script to return all words separated by the given character excluding
+# empty string.
+#
+# Example 1
+#
+# Input: @words = ("one.two.three","four.five","six")
+#        $separator = "."
+# Output: "one","two","three","four","five","six"
+#
+# Example 2
+#
+# Input: @words = ("$perl$$", "$$raku$")
+#        $separator = "$"
+# Output: "perl","raku"
+#
+############################################################
+##
+## discussion
+##
+############################################################
+#
+# This is a classic one-liner problem: join the words into a single string,
+# then split this string into an array of strings at the separator, then
+# only keep the non-empty strings by grepping for strings that contain one
+# character.
+#
+
+import re
+
+def split_strings(separator: str, words: list) -> None:
+    print("Input: (\"", "\", \"".join(words), "\"), '", separator, "'",  sep="")
+    output = []
+    for value in separator.join(words).split(separator):
+        if len(value) > 0:
+            output.append(value)
+    print("Output: (\"", "\", \"".join(output), "\")", sep="")
+
+
+split_strings(".", ["one.two.three","four.five","six"])
+split_strings('$', ['$perl$$', '$$raku$'])
+